Custom Filter

Functions · Intermediate · 65 XP · about 6 min

Write a function called custom_filter(lst, func) that returns a new list containing only the elements for which the function returns True.

This is similar to Python's built-in filter() function!

Example

custom_filter([1, 2, 3, 4, 5], lambda x: x > 2)  # Returns [3, 4, 5]
custom_filter([1, 2, 3, 4], lambda x: x % 2 == 0)  # Returns [2, 4]
custom_filter(["a", "bb", "ccc"], lambda x: len(x) > 1)  # Returns ["bb", "ccc"]

Requirements

Return a new list (don't modify the original)
The function func takes one argument and returns True/False
Handle empty lists

def custom_filter(lst, func):

# Your code here

pass

# Test your function

print(custom_filter([1, 2, 3, 4, 5], lambda x: x > 2))

print(custom_filter([1, 2, 3, 4], lambda x: x % 2 == 0))

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